Thayer's Gull

Tuncica Co, MS

As we were trying to follow the 1st Thayer's in a mass of birds, Jeff picked up this 2nd bird. When on the ground, the birds tended to stay faily close to each other.

This bird was very obvious in the air, where it had a perfect Thayer's pattern, but not quite as obvious on the ground as the other bird. The distinctly brown tertials and primaries are obvious here, and though less-distinct than the other Thayer's, the light markings were visible on the primaries (though just on the tips in this photo)